True story: I was sleeping over at an acquaintance's house one weekend, and her husband passed us in the hall and said, quite chirpily, "Good morning." Once he disappeared into a room, my friend said, "He was naked, by the way," and I replied, completely blase, "Yes, I know." She asked me how I knew and I said "There are two kinds of men in the world: those that sound embrassed when you accidentally catch them naked, and those that sound really proud of themselves."